linux-kernel - [PATCH] dt-bindings: clock: Convert i.MX8QXP LPCG to json-schema

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Date:   Fri, 29 May 2020 14:21:39 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, aisheng.dong@....com,
        linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH] dt-bindings: clock: Convert i.MX8QXP LPCG to json-schema

Convert the i.MX8QXP LPCG binding to DT schema format using json-schema.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
 .../devicetree/bindings/clock/imx8qxp-lpcg.txt     | 51 ---------------
 .../devicetree/bindings/clock/imx8qxp-lpcg.yaml    | 72 ++++++++++++++++++++++
 2 files changed, 72 insertions(+), 51 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/clock/imx8qxp-lpcg.txt
 create mode 100644 Documentation/devicetree/bindings/clock/imx8qxp-lpcg.yaml

diff --git a/Documentation/devicetree/bindings/clock/imx8qxp-lpcg.txt b/Documentation/devicetree/bindings/clock/imx8qxp-lpcg.txt
deleted file mode 100644
index 965cfa4..0000000
--- a/Documentation/devicetree/bindings/clock/imx8qxp-lpcg.txt
+++ /dev/null
@@ -1,51 +0,0 @@
-* NXP i.MX8QXP LPCG (Low-Power Clock Gating) Clock bindings
-
-The Low-Power Clock Gate (LPCG) modules contain a local programming
-model to control the clock gates for the peripherals. An LPCG module
-is used to locally gate the clocks for the associated peripheral.
-
-Note:
-This level of clock gating is provided after the clocks are generated
-by the SCU resources and clock controls. Thus even if the clock is
-enabled by these control bits, it might still not be running based
-on the base resource.
-
-Required properties:
-- compatible:	Should be one of:
-		  "fsl,imx8qxp-lpcg-adma",
-		  "fsl,imx8qxp-lpcg-conn",
-		  "fsl,imx8qxp-lpcg-dc",
-		  "fsl,imx8qxp-lpcg-dsp",
-		  "fsl,imx8qxp-lpcg-gpu",
-		  "fsl,imx8qxp-lpcg-hsio",
-		  "fsl,imx8qxp-lpcg-img",
-		  "fsl,imx8qxp-lpcg-lsio",
-		  "fsl,imx8qxp-lpcg-vpu"
-- reg:		Address and length of the register set
-- #clock-cells:	Should be <1>
-
-The clock consumer should specify the desired clock by having the clock
-ID in its "clocks" phandle cell.
-See the full list of clock IDs from:
-include/dt-bindings/clock/imx8qxp-clock.h
-
-Examples:
-
-#include <dt-bindings/clock/imx8qxp-clock.h>
-
-conn_lpcg: clock-controller@...00000 {
-	compatible = "fsl,imx8qxp-lpcg-conn";
-	reg = <0x5b200000 0xb0000>;
-	#clock-cells = <1>;
-};
-
-usdhc1: mmc@...10000 {
-	compatible = "fsl,imx8qxp-usdhc", "fsl,imx7d-usdhc";
-	interrupt-parent = <&gic>;
-	interrupts = <GIC_SPI 232 IRQ_TYPE_LEVEL_HIGH>;
-	reg = <0x5b010000 0x10000>;
-	clocks = <&conn_lpcg IMX8QXP_CONN_LPCG_SDHC0_IPG_CLK>,
-		 <&conn_lpcg IMX8QXP_CONN_LPCG_SDHC0_PER_CLK>,
-		 <&conn_lpcg IMX8QXP_CONN_LPCG_SDHC0_HCLK>;
-	clock-names = "ipg", "per", "ahb";
-};
diff --git a/Documentation/devicetree/bindings/clock/imx8qxp-lpcg.yaml b/Documentation/devicetree/bindings/clock/imx8qxp-lpcg.yaml
new file mode 100644
index 0000000..d5b6825
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/imx8qxp-lpcg.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/imx8qxp-lpcg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8QXP LPCG (Low-Power Clock Gating) Clock bindings
+
+maintainers:
+  - Aisheng Dong <aisheng.dong@....com>
+
+description: |
+  The Low-Power Clock Gate (LPCG) modules contain a local programming
+  model to control the clock gates for the peripherals. An LPCG module
+  is used to locally gate the clocks for the associated peripheral.
+
+  This level of clock gating is provided after the clocks are generated
+  by the SCU resources and clock controls. Thus even if the clock is
+  enabled by these control bits, it might still not be running based
+  on the base resource.
+
+  The clock consumer should specify the desired clock by having the clock
+  ID in its "clocks" phandle cell. See the full list of clock IDs from:
+  include/dt-bindings/clock/imx8-clock.h
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8qxp-lpcg-adma
+      - fsl,imx8qxp-lpcg-conn
+      - fsl,imx8qxp-lpcg-dc
+      - fsl,imx8qxp-lpcg-dsp
+      - fsl,imx8qxp-lpcg-gpu
+      - fsl,imx8qxp-lpcg-hsio
+      - fsl,imx8qxp-lpcg-img
+      - fsl,imx8qxp-lpcg-lsio
+      - fsl,imx8qxp-lpcg-vpu
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8-clock.h>
+    #include <dt-bindings/firmware/imx/rsrc.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    clock-controller@...00000 {
+        compatible = "fsl,imx8qxp-lpcg-conn";
+        reg = <0x5b200000 0xb0000>;
+        #clock-cells = <1>;
+    };
+
+    mmc@...10000 {
+        compatible = "fsl,imx8qxp-usdhc", "fsl,imx7d-usdhc";
+        interrupts = <GIC_SPI 232 IRQ_TYPE_LEVEL_HIGH>;
+        reg = <0x5b010000 0x10000>;
+        clocks = <&conn_lpcg IMX_CONN_LPCG_SDHC0_IPG_CLK>,
+                 <&conn_lpcg IMX_CONN_LPCG_SDHC0_PER_CLK>,
+                 <&conn_lpcg IMX_CONN_LPCG_SDHC0_HCLK>;
+        clock-names = "ipg", "per", "ahb";
+        power-domains = <&pd IMX_SC_R_SDHC_0>;
+        status = "disabled";
+    };
-- 
2.7.4